2006Final results
2006 election for Minnesota's 4th District
U.S. House · Minnesota
Betty McCollum (D) won with 69.5% of the vote, defeating Obi Sium (R) by 39.3 points.
Betty McCollumDemocrat · winner
69.5%172,096
Obi SiumRepublican
30.2%74,797
247,466 votes
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
The seat over time
D − R margin in this seat's races around 2006
Races before and after
Source: MIT Election Data and Science LabUpdated Sep 30, 2026, 7:25 AM ET
Money in this race
Each line compares the two campaigns on one scale.
Betty McCollumObi Sium
$562.8K
Raised by the campaign
$79.2K
$611.9K
Spent by the campaign
$75.6K
$74.9K
Cash on hand
$3.6K
Campaign money: FEC, through Dec 31, 2006.
Source: FEC campaign filingsUpdated Dec 31, 2006